Referenced Items are not available for this document.
A 5-b high-temperature-superconductive digital instantaneous frequency-measurement (DIFM) subsystem has been constructed for the determination of the frequency of unknown signals over a 500-MHz bandwidth, centered on 4 GHz, with a resolution of +or-7.8 MHz. The subsystem contains a cryogenic section with five discriminator modules using superconductive delay lines, GaAs mixers, and power dividers. The subsystem also has a room-temperature GaAs limiting amplifier and a silicon postprocessor. With a single-tone CW (continuous-wave) input between-40 dBm and +10 dBm, the frequency quantization boundaries of the subsystem are, on average, 3.1 MHz from their design values.<
Published in:
Microwave Symposium Digest, 1993., IEEE MTT-S International
Date of Conference: 14-18 June 1993
- Page(s):
- 1413 - 1416 vol.3
- Meeting Date :
- 14 Jun 1993-18 Jun 1993
- ISSN :
- 0149-645X
- Print ISBN:
- 0-7803-1209-0
- INSPEC Accession Number:
- 4534274
- Conference Location :
- Atlanta, GA, USA
- Digital Object Identifier :
- 10.1109/MWSYM.1993.276733
- Product Type:
- Conference Publications
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